| CYTOLOGIC | Chromosome Number | Laboratory determination of chromosome number. | 42 | | WHEAT.PLOIDY.ABERDEEN | PI 251550 TR99ID SD | Not Available |
| DISEASE | Dwarf Bunt | Reaction to Dwarf Bunt, TCK (causal fungus Tilletia controversa Kuhn), incidence expressed as the number of infected spikes divided by thhe total number of spikes, recorded as a percent of the susceptible check. | 100.0 | | WHEAT.DBUNT.GREENCANYON.02 | PI 251550 TR99ID SD | Not Available |
| DISEASE | Powdery Mildew | Reaction to Powdery Mildew (incited by Erysiphe graminis f.sp. Tritici). Rated at Feekes growth stage GS 10.3. | 3 - 5-15% leaf area affected on third leaf | | WHEAT.PMILDEW.RALEIGH.96 | PI 251550 TR76ID SD | Not Available |
| DISEASE | Stripe Rust Adult Reaction MTV | Reaction to Stripe Rust (incited by Puccinia striiformis) in the adult plant stage in the field. See also related descriptor Stripe Rust Adult Severity. Grown in Mt. Vernon. | 8 - SUSCEPTIBLE | | WHEAT.STRIPERUST.MTVERNON.W99 | PI 251550 TR76ID SD | Not Available |
| DISEASE | Stripe Rust Adult Reaction PUL | Reaction to Stripe Rust (incited by Puccinia striiformis) in the adult plant stage in the field. See also related descriptor Stripe Rust Adult Severity. Grown in Mt. Vernon. Grown in Pullman. | 5 - INTERMEDIATE | | WHEAT.STRIPERUST.PULLMAN.98 | PI 251550 TR76ID SD | Not Available |
| DISEASE | Stripe Rust Seedling React 17 | Reaction to Stripe Rust PST 17 (incited by Puccinia striiformis) in the seedling plant stage. | 8 - SUSCEPTIBLE | | WHEAT.STRIPERUST.PULLMAN.GH.98 | PI 251550 TR76ID SD | Not Available |
| DISEASE | Stripe Rust Seedling React 37 | Reaction to Stripe Rust PST 37 (incited by Puccinia striiformis) in the seedling plant stage. | 0 - RESISTANT, NO SYMPTOMS | | WHEAT.STRIPERUST.PULLMAN.GH.98 | PI 251550 TR76ID SD | Not Available |
| DISEASE | Stripe Rust Seedling React 43 | Reaction to Stripe Rust PST 43 (incited by Puccinia striiformis) in the seedling plant stage. | 8 - SUSCEPTIBLE | | WHEAT.STRIPERUST.PULLMAN.GH.98 | PI 251550 TR76ID SD | Not Available |
| DISEASE | Stripe Rust Seedling React 45 | Reaction to Stripe Rust PST 45 (incited by Puccinia striiformis) in the seedling plant stage. | 8 - SUSCEPTIBLE | | WHEAT.STRIPERUST.PULLMAN.GH.98 | PI 251550 TR76ID SD | Not Available |
| DISEASE | Stripe Rust Adult Severity MTV | Percent severity or intensity of Stripe Rust (incited by Puccinia striiformis) in the adult plant stage in the field. See also related descriptor Stripe Rust Adult Reaction. Grown in Mt. Vernon. | 90 | | WHEAT.STRIPERUST.MTVERNON.W99 | PI 251550 TR76ID SD | Not Available |
| DISEASE | Stripe Rust Adult Severity PUL | Percent severity or intensity of Stripe Rust (incited by Puccinia striiformis) in the adult plant stage in the field. See also related descriptor Stripe Rust Adult Reaction. Grown in Mt. Vernon. Grown in Pullman. | 10 | | WHEAT.STRIPERUST.PULLMAN.98 | PI 251550 TR76ID SD | Not Available |
| GROWTH | Growth Habit | Growth habit, based on a spring planting. | W - WINTER | | WHEAT.HABIT.ABERDEEN.01 | PI 251550 TR99ID SD | Not Available |
| GROWTH | Plant Height Ratio | Height of the wheat plant from ground to the top of the spike (excluding awns) at maturity. Expressed as a ratio of the check entry. See also related descriptor Plant Height. | 2.039 | | WHEAT.AGRON.MARICOPA.01 | PI 251550 TR99ID SD | Not Available |
| INSECT | Hessian Fly Biotype GP | Reaction to Hessian fly Biotype GP (Mayetiola destructor). | 9 - SUSCEPTIBLE (81-100% S) | | WHEAT.HESSIANFLY.WLAF.92 | PI 251550 TR76ID SD | Not Available |
| INSECT | Russian Wheat Aphid Chlorosis1 | Reaction to the Russian Wheat Aphid Biotype 1 (Diuraphis noxia). Amount of chlorosis. See RWA Leafroll descriptor, also. | 8 - 85% LEAF CHLOROTIC, EXTENSIVE CHLOROSIS AND NECROSIS. | | WHEAT.RWA.STILLWATER.92 | PI 251550 TR76ID SD | Not Available |
| INSECT | Russian Wheat Aphid Leafroll1 | Reaction to the Russian Wheat Aphid Biotype 1 (Diuraphis noxia). Leafrolling symptoms. See RWA Chlorosis descriptor, also. | R - LEAVES ROLLED, LOOSELY TO TIGHTLY | | WHEAT.RWA.STILLWATER.92 | PI 251550 TR76ID SD | Not Available |
| MORPHOLOGY | Spike Density | Visual measure of spike density. | 3 - (1 = LAX, 9 = VERY DENSE) | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Spike Type | Shape characteristic of typical mature spikes. | 1 - FUSIFORM | | WHEAT.AGRON.ABERDEEN.16 | | Not Available |
| MORPHOLOGY | Straw Color | Color of straw at maturity. | 8 - WHITE/AMBER | | WHEAT.AGRON.ABERDEEN.16 | | Not Available |
| MORPHOLOGY | Glume Color | Color of the glumes. | 3 - BROWN | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Kernel Color | Color of the kernels. | 3 - BROWN | | WHEAT.LAB.ABERDEEN.08A | PI 251550 TR99ID SD | Not Available |
| MORPHOLOGY | Awn Color | Color of the awns. | 3 - BROWN | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| MORPHOLOGY | Awn Type | Type and extent of the awns. | 1 - AWNED | | WHEAT.LAB.ABERDEEN.18 | | Not Available |
| PHENOLOGY | Days to Flowering | Number of days from January 1 (inclusive) when 50% of the spikes are fully exserted from the boot. Expressed as a ratio of the check entry. See also related descriptor Days to Anthesis. | 1.534 | | WHEAT.AGRON.MARICOPA.01 | PI 251550 TR99ID SD | Not Available |
| PRODUCTION | 1000 Kernel Weight | Thousand kernel weight, based on a 30ml volume sample size.
| 38.8 | | WHEAT.LAB.ABERDEEN.08A | PI 251550 TR99ID SD | Not Available |